Twenty-four years ago today, the citizens of Iran experienced a major political upheaval: The progressive, secular government of the Shah was replaced by the far more rigid and conservative government of Ayatollah Khomeini.

The new regime meant a mass exodus for thousands of Persians fleeing the new government, ending their old lives in Iran to begin new ones in the United States.

Many of the emigrants made their home in Southern California, which at more than 300,000 boasts the country’s largest Iranian immigrant population. Westwood has its fair share of the community, with many Persian-owned businesses located south of Wilshire Boulevard.

Muhamed Yazdin, owner of the Dekhoda Bookstore, is one of these emigrants.

His store looks like an ancient temple dedicated to books. They are everywhere, stacked from floor to ceiling as far as the eye can see. There is a faint musty smell in the air; a smell that any bibliophile is familiar with: old books. Ranging from philosophy and politics to fairy tales and history, all are written in Farsi.

“In Iran, one of my jobs was a bookseller with my own store that I ran, and I just wanted to continue it here,” Yazdin says.

He is calm in discussing the country from which he emigrated 22 years ago due to his wife’s medical condition, insisting the move had nothing to do with politics. The only time he loses his cool is when talk comes around to his business in Westwood’s Persian area; then he sounds regretful and even a little angry.

“Before the store was doing good, but not now. People just stopped reading books. People in this city do not read, they look for money, not books,” he says.

Melanie Mortazavi’s music store, Sound City, located right next to Dekhoda, does not seem to have that problem, with customers coming in and out briskly.

Mortazavi and her husband both left Iran 25 years ago because of the change in regime and have never been back since.

“When I come somewhere new, I never want to come back,” Mortazavi says.

The inside of her store seems to be years removed from the bookstore; posters of singers hang on every wall and rhythmic music blares from the speakers.

She said life in the Iran of her youth was great for her and her family.

“Before we left, Iran was a second Europe, a second Persia, beautiful life. There were tall, beautiful buildings everywhere, stores, movies; we had everything,” Mortazavi says.

“We were secure then, too. I could go outside at three, four o’clock in the morning, and it was very secure, but that was before,” she adds with a sigh.

The revolution changed the secular nature of the country, with the establishment of a new constitution just a year after the Shah’s monarchy was overturned.

This constitution’s basic feature was to ensure that the country followed an Islamic path under “Velayat-e Faqih,” literally a “Supreme Jurisprudence,” consisting of either a single leader whose qualities are universally recognized by the people, or by three to five people to be selected by an elected Council of Islamic Experts, according to the United Nations.

Sunny Sadri, who came to the United States in 1987 at 16, can remember her time as a high school student in Iran under the religious regime.

“As a teenager I had no freedom; I had to cover myself all the time, the boys and girls were separated. It was tough,” Sadri said.

Catherine Mirzaian, Mortazavi’s assistant in City Sound, also remembers the changes she experienced after the new government came to power.

“I had to wear the hijab, the traditional clothing, even though I am not Muslim. But everybody has to go by the rules,” she says

Iran has a majority Muslim population, with over 99 percent of Iran’s citizens identifying as either Shi’ite or Sunni Muslim; the remaining 1 percent follow the Jewish, Christian, Zoroastrian or Baha’i religions.

Mirzaian said her Christian religion played a big part in her decision to leave Iran three years ago.

“After the revolution, the new government was very religious and strict, especially with those ... who are not Muslim,” Mirzaian said.

Even after deciding to leave, she added, getting into the United States proved to be very difficult; she had to wait two years before obtaining a visa from the U.S. government.

“I am lucky though,” she said. “I made it here two weeks after Sept. 11, 2001, but my friends who were waiting with me got stuck in Vienna for a lot longer, unable to get out.”

Mirzaian stayed in Vienna for six months, a common occurrence as many refugees stay in a European country on their way to the United States; she said Vienna was a complete culture shock to her.

“I just enjoyed myself: party, party, party,” she said, smiling. “Coming from Iran into a free country, I just had to enjoy myself.”

Change has been coming to Iran, though, since 1997, when Iran’s citizens selected their president in the freest and most competitive election since before the revolution.

Sadri traveled back to Iran five years ago for her best friend’s wedding and noticed the changes firsthand.

“Iran is much more modern now, you do not have to cover yourself all the way now; the women there keep up with the fashion. It’s much more modern, not as harsh to women,” she says.

She added that even though it is much improved, Iran still has its share of problems.

“There are very few universities there, and even after graduating people cannot find work,” Sadri said.

According to Gholamali Farjadi, an economics professor at New York University, during the last five years Iran has had 3 percent economic growth, which is inadequate to secure sufficient jobs for the more than 700,000 additional job seekers entering the job market annually.

Yazdin, however, still misses his native country, where he worked for many years as a filmmaker.

“I am sorry that I left. I visited once 10 years ago, but that’s all. My life was good then, it was better back there,” he adds.

Mortazavi said she also misses the Iran of her youth but expresses no desire to come back.

“If not for the revolution, we never would have come (to the United States), but we appreciate the chance to live in this country, to work and talk freely without worrying, and also to keep our heritage, our Persian culture,” Mortazavi said.